CN109268706B

CN109268706B - Modularized lamp based on can bus

Info

Publication number: CN109268706B
Application number: CN201811207033.8A
Authority: CN
Inventors: 徐一波; 王宁; 占文生
Original assignee: Individual
Current assignee: Wang Ning; Zhan Wensheng
Priority date: 2018-10-17
Filing date: 2018-10-17
Publication date: 2023-09-19
Anticipated expiration: 2038-10-17
Also published as: CN109268706A

Abstract

The invention discloses a modularized lamp based on can bus, which comprises a mutual electric signal connection switch assembly, at least one lamp cap and a power supply assembly; the lamp cap comprises a lamp bead and a lamp cap circuit board; the lamp cap circuit board comprises a lamp cap chip driving module and a lamp cap CAN bus communication module which are connected with each other through electric signals; the lamp cap chip driving module is connected with the lamp beads; the switch assembly comprises a switch circuit board, wherein the switch circuit board comprises a switch chip driving module and a switch CAN bus communication module which are connected with each other through electric signals. The invention can solve the technical problem of how to realize the simultaneous control of one or more lamp caps by the switch based on the can bus.

Description

Modularized lamp based on can bus

Technical Field

The invention relates to a modularized lamp based on a CAN bus, in particular to a lamp which utilizes the CAN bus to flexibly configure all parts.

Background

The existing lamp has different shapes, basically consistent main body structure and the like, and mainly comprises a shell, a drive, a luminous body, a radiator and other parts, wherein the assembly relations of the parts are fixed, the assembly can not be changed according to the needs, and the lamp is not strong in practicability.

Disclosure of Invention

The invention aims to provide a modularized lamp based on a can bus, which solves the technical problem of how to realize that one or more lamp caps are controlled simultaneously based on the can bus, so that the lamp has different use experiences.

The modularized lamp based on can bus comprises a mutual electric signal connection switch assembly, at least one lamp cap and a power supply assembly; the lamp cap comprises a lamp bead and a lamp cap circuit board; the lamp cap circuit board comprises a lamp cap chip driving module and a lamp cap CAN bus communication module which are connected with each other through electric signals; the lamp cap chip driving module is connected with the lamp beads; the switch assembly comprises a switch circuit board, wherein the switch circuit board comprises a switch chip driving module and a switch CAN bus communication module which are mutually connected by electric signals; the switch CAN bus communication module is connected with the lamp cap CAN bus communication module, and the power supply assembly is electrically connected with the lamp cap and the switch assembly.

The lamp cap chip driving module and the switch chip driving module comprise STM32F103C8T6 chips, and the lamp cap CAN bus communication module and the switch CAN bus communication module are TJA1050 communication modules; pins of an STM32F103C8T6 chip of the lamp cap chip driving module are connected with lamp bead electric signals; the switch component is a knob switch, a sound control switch, a WIFI switch, a Bluetooth switch, an infrared switch or a gesture switch.

The knob switch is provided with one or more of an LED lamp bead light guide ring, a knob resistor and a touch key; the switch chip driving module is connected with one or more of the LED lamp bead light guide ring, the knob resistor and the touch key.

A double-female-head assembly for electric signal transmission is arranged between the power supply assembly and the switch assembly; the lamp cap, the power supply component, the double-female-head component and the switch component are sequentially in magnetic or fastening or interference fit.

The lamp cap, the power supply assembly, the double-female-head assembly and the switch assembly are matched through magnets in sequence, namely, each part is provided with a magnet ring positioned inside or outside the part at the matched position.

The lamp cap, the power supply assembly, the double-female-head assembly and the switch assembly are connected through the male-female-head assembly in sequence to realize electric signal connection; the male and female head assembly comprises a male head and a female head which are mutually connected through electric signals; the male head is provided with a plurality of pins arranged at intervals, the female head is provided with a plurality of conducting rings arranged at intervals, and the conducting rings are matched with the pins to form a power supply end, a zero line end, a CAN bus high-level end and a CAN bus low-level end which form an electric signal line; the lamp bead, the lamp cap circuit board and the switch component are connected in parallel between the power supply end and the zero line end; the lamp cap CAN bus communication module and the switch CAN bus communication module are connected in parallel between the CAN bus high-level end and the CAN bus low-level end.

The contact pins are arranged at 4 annular intervals, and the conducting rings are also arranged at 4 annular intervals.

The outer overall shape of the lamp cap and/or the double female head assembly and/or the power supply assembly and/or the switch assembly is a full cylinder or a conical cylinder or a square prism.

The lamp cap is a spotlight cap, and the lamp beads of the spotlight cap are arranged at the top of the lamp cap; the power supply component is matched with the double female head component through the male head and the female head in sequence, and the double female head component is matched with the switch component through the female head and the male head in sequence.

The lamp cap is a side lamp cap, and lamp beads of the side lamp cap are arranged on the side part of the lamp cap; the side lamp holder passes through public head, female head in proper order and power supply module cooperation, and power supply module passes through public head, female head and the cooperation of two female head subassemblies in proper order, and two female head subassemblies pass through female head, public head and switch module cooperation in proper order.

The number of the side lamp caps is at least two, and adjacent side lamp caps are matched through a male and female head assembly; the lamp cap CAN bus communication modules between adjacent lamp caps are connected in parallel with the CAN bus low-level end through the CAN bus high-level end of the electric signal and are connected with the switch CAN bus communication module; the lamp beads of the adjacent side lamp holders and the lamp holder circuit board are connected with the power supply assembly in parallel through the power supply end and the zero line end of the electric signals.

The lamp cap is a combination of a shooting lamp cap and a side lamp cap, and lamp beads are arranged at the top and the side parts of the lamp cap; the lamp cap CAN bus communication module between the adjacent lamp cap and the side lamp cap is connected with the CAN bus low-level end in parallel through the CAN bus high-level end of the electric signal and is connected with the switch CAN bus communication module; the lamp beads of the adjacent spot lamp heads and the side lamp heads are connected with the power supply assembly in parallel through the power supply end and the zero line end of the electric signals.

The side lamp holder is further provided with a seal head, and the seal head is matched with the side lamp holder through a magnet, a buckle or interference.

The lamp cap is a side lamp cap, and lamp beads of the side lamp cap are arranged on the side part of the lamp cap; the side lamp cap and the front part of the power supply component are provided with wall-hanging bases; the wall-mounted base is provided with a male head at the position matched with the side lamp cap, and a female head at the position matched with the power supply component; the side lamp cap, the wall hanging base, the power supply component and the switch component are connected through electric signals in sequence.

The lamp cap is a side lamp cap, and lamp beads of the side lamp cap are arranged on the side part of the lamp cap; the power assembly integrally forms a wall mount base and has an adapter interface thereon.

The modularized lamp based on the can bus further comprises a desk lamp base, the desk lamp base is provided with a mother head, the desk lamp base is connected with the power supply assembly, the side lamp cap and the switch assembly through electrical signals, and the lamp beads of the side lamp cap are arranged on the side portion of the lamp cap.

And an elbow is arranged between the side lamp cap and the power supply component, a female joint is arranged at the position where the elbow is matched with the side lamp cap, a male joint is arranged at the position where the elbow is matched with the power supply component, and the female joint and the male joint on the elbow are in electric signal connection.

The lamp cap is a side lamp cap, and lamp beads of the side lamp cap are arranged on the side part of the lamp cap; the power assembly integrally forms a cradle and has an adapter interface thereon.

The external overall shape of the lamp cap and/or the double-female-head assembly and/or the power supply assembly and/or the switch assembly is a whole cylinder or a conical cylinder or a square prism.

The high-level end and the low-level end of the switch CAN bus communication module are respectively connected with the high-level end and the low-level end of the lamp cap CAN bus communication module, and the power supply assembly is electrically connected with the lamp cap and the switch assembly.

The beneficial effects of the invention are as follows: the scheme is that the magnet, the contact pin and the conducting ring are utilized to carry out the matching on the structure and the electric signal connection of each component; the chip driving module and the CAN bus communication module are utilized to realize free matching of a plurality of lamp caps and realize real-time control of at least one lamp cap by the switch assembly.

Because the lamp cap and the switch assembly are connected in parallel on signals through the respective CAN bus communication modules and are mutually connected through signal wires, the action information of the switch assembly sends an instruction to the CAN bus communication modules, and the chip driving module receives the feedback instruction of the CAN bus communication modules and directly performs corresponding actions on the lamp cap. In addition, when the lamp holders are multiple, the adjacent lamp holders are connected with each other in parallel with the signal wires through the CAN bus communication modules, the electric signal connection is carried out on each part by adopting the CAN bus communication modules, the contact pins and the conducting rings, and each lamp holder and other parts CAN be assembled and installed in a modular free mode, namely, the first lamp holder and the added lamp holder CAN be mutually overlapped without influencing the original circuit line communication, so that the installation quantity of the lamp holders CAN be increased or reduced as required, and the lamp holders CAN be mutually overlapped and controlled in a one-to-many mode through a switch assembly. The components are mounted in a magnet mode, so that the components of the modular lamp based on the can bus can be flexibly disassembled and assembled.

Drawings

FIG. 1 is a schematic diagram of embodiment 1 of the present invention applied to a flashlight;

FIG. 2 is a schematic view of a burner;

FIG. 3 is another schematic view of the burner;

FIG. 4 is a schematic view of a dual female assembly;

FIG. 5 is a schematic diagram of a power supply assembly;

FIG. 6 is a schematic diagram of another side of the power supply assembly;

FIG. 7 is a schematic diagram of a rotary switch;

FIG. 8 is a schematic diagram of electrical signal connections between a closure, a burner, a double-head assembly, a power assembly, and a switch assembly;

FIG. 9 is a schematic diagram of a lamp head circuit board;

FIG. 10 is a schematic diagram of a lamp head chip driver module, the switch chip driver module being identical in structure to the lamp head chip driver module;

FIG. 11 is a schematic diagram of a lamp head CAN bus control module, the switch CAN bus control module being identical to the lamp head CAN bus control module;

FIG. 12 is a schematic diagram of a power supply circuit;

FIG. 13 is a schematic diagram of an on-board interface;

FIG. 14 is a schematic view of embodiment 2 of the present invention applied to a flashlight emergency lamp;

FIG. 15 is a schematic view of a side burner;

FIG. 16 is a schematic view of the other side of the side light;

FIG. 17 is a schematic illustration of the electrical signal connections between the components of the lamp of FIG. 16 with the addition of a side cap;

FIG. 18 is a schematic view of embodiment 3 of the present invention applied to a wall-mounted lamp;

fig. 19 is a schematic view of a wall mount base;

FIG. 20 is a schematic view of an embodiment 4 of the present invention applied to another wall-mounted lamp;

fig. 21 is a schematic view of embodiment 5 of the present invention applied to a desk lamp;

FIG. 22 is a schematic view of a desk lamp base;

fig. 23 is a schematic view showing the application of embodiment 6 of the present invention to a ceiling lamp;

FIG. 24 is a knob switch program flow control diagram;

FIG. 25 is a head program flow control diagram;

in the figure, a lamp holder 101, a lamp holder 102, a side lamp holder 11, a lamp holder circuit board 12, a lamp holder male head 121, circles 122, a lamp holder pin 13, a lamp holder chip driving module 14, a lamp holder CAN bus communication module 2, a double-female-head assembly 21, a female-head conductive ring,

3. The power supply comprises a power supply assembly, a power supply male head, a power supply pin, a mobile power supply, a power supply female head, a power supply conductive ring, a power supply 4, a switch assembly, a switch 41, a switch chip driving module 411, a switch CAN bus communication module 412, a switch male head, a switch pin 421, a magnet ring 5, a wall hanging base 6, a wall hanging base 7, a seal head 8, a desk lamp base 81, a desk lamp female head 9, an elbow 10, a hanging bracket and a signal wire 1001.

Detailed Description

Example 1

Referring to fig. 1 to 13, fig. 24 to 25, a can bus-based modular lamp is mainly used as a flashlight, and mainly includes a spotlight holder 101, a power supply assembly 3, a double-female-head assembly 2, and a switch assembly 4. The components are all connected through electric signals by matching a male head component and a female head component, the male head component consists of a male head and a female head which are mutually connected through electric signals, the male head is provided with four pins which are arranged at intervals in a ring shape, each ring is provided with a plurality of pins, the female head is provided with four conductive rings which are arranged at intervals in a ring shape, and each ring is provided with a plurality of conductive rings; and each part adopts a labeling expression mode of a part and a male head or a part and a female head. The contact pin can select an elastic contact pin or other contact pin structures or elastic sheet structures according to the needs, and only needs to meet the requirements of electric signal connection, and the elastic contact pin is internally provided with a miniature reset spring.

The reflector 101 comprises a plurality of lamp beads, a lamp cap circuit board 11 and a lamp cap male head 12; the spotlight holder 101 also includes an aluminum base plate, a lamp housing, a case, and the like, and these are not described in detail since they are existing components. In the prior art, the lamp beads, the aluminum substrates and the lamp holder circuit boards 11 are independently and one-to-one arranged in a driving way, namely, the traditional lamp is only matched with one circuit board and is independently arranged in a control system in a spaced manner with the lamp holder, the two lamp holder circuit boards 11 cannot be mutually matched due to the absence of the lamp beads, the aluminum substrates and the additionally added lamp holder circuit boards 11 are designed in a set mode, and the switch assembly is matched with a set of circuit boards identical to the lamp holder 101. The lamp cap circuit board 11 comprises a lamp cap chip driving module 13 with the model of STM32F103C8T6, a lamp cap CAN bus communication module 14 with the model of TJA1050 and a power module with the model of RT 9193-33; the connection mode of the lamp cap chip driving module 13 and the power supply module belongs to the existing matching mode, and the power supply module converts the five-volt voltage of the power supply assembly 3 into the 3.3-volt voltage for the lamp cap chip driving module 13 to work, and specific reference can be made to fig. 12. The power supply assembly 3 provides five-volt working voltage for the lamp cap CAN bus communication module 14, the switch CAN bus communication module 412 and the lamp beads; the lamp head chip driving module 13 and the switch chip driving module 411 are supplied with 3.3 v. The chip can be a singlechip chip meeting the requirements according to the requirements, and is not particularly limited to the chip. In practical application, the power supply component and the lamp cap are in an integrated structure or a split structure.

The lamp cap CAN bus communication module 14 comprises a CANH high-level end and a CANL low-level end which are used for communication, a D end and an R end which are connected with the lamp cap chip driving module 13, and a VCC end which is matched with external five-volt voltage; the CANH high-level end and CANL low-level end are connected with the signal line, and the feedback pin, namely the PB11 pin, of the lamp cap chip driving module 13 is connected with the lamp beads, so that the lamp cap chip driving module 13 correspondingly acts on the lamp beads by receiving signals of the lamp cap CAN bus communication module 14 and the PB11 pin. The positions of the pins can be adjusted as required. The cap male 12 includes four cap pins 122 arranged at intervals in a ring shape, namely, four circles 121 with intervals in total, which only express that the cap pins 122 are arranged in a ring shape and do not really exist, and a plurality of cap pins 122 are arranged on each circle 121 at intervals, so that the effect of conducting electricity with the cap pins 122 is to increase contact points between the pins and the conductive rings mentioned later to avoid poor contact and distinguish a 5 volt power end, a zero line end, a CAN bus high level end and a CAN bus low level end of a signal line. Each of the four rings of the lamp holder pins 122 sequentially forms a CAN bus high-level end, a CAN bus low-level end, a power supply positive end, namely a five-volt power supply end, and a zero line end, so that electric signal connection with current and communication of the lamp holder circuit board 11, the lamp beads and the switch 41 is formed. The electric signal wire for transmitting the electric signal is provided with four wires, namely a zero wire, a fire wire and two communication wires, which form a 5-volt power supply end, a zero wire end, a CAN bus high-level end and a CAN bus low-level end.

The power supply assembly 3 comprises a power supply male head 31, a mobile power supply 32 and a power supply female head 33 which are sequentially connected through electric signals. The power male head 31 comprises four power pins 311 which are arranged at intervals in a ring shape, the power pins 311 are matched with the electric signals of four female head conducting rings 21 which are arranged at intervals in a ring shape on the other side of the double female head component 2, and the power female head 33 is provided with four power conducting rings 331 which are arranged at intervals in a ring shape; the power conducting ring 331 is configured to electrically cooperate with the switch pin 421 of the switch male 42. The last time the mobile power supply 32 provides the operating voltage to the above-mentioned chip, communication module, lamp pearl that the parallel arrangement was put.

The double female head assembly 2 comprises female head conductive rings 21 which are mutually connected by electric signals and made of conductive materials, and the female head conductive rings 21 on each side are arranged at four annular intervals; one side of the double female connector assembly 2 is in electric signal fit with the lamp holder pin 122 through the female connector conductive ring 21, and the other side of the double female connector assembly 2 is in electric signal fit with the switch male connector 42 of the switch assembly 4 through the female connector conductive ring 21.

The switch assembly 4 comprises a switch 41 and a switch male 42 which are electrically connected with each other; the switch male 42 includes four switch pins 421 disposed at annular intervals, and the switch pins 421 are electrically coupled to the four annular power conductive rings 331 of the power female 33. The switch 41 is designed as a knob switch and/or a touch switch, a sound control switch, a WIFI switch, a Bluetooth switch, an infrared switch, a gesture switch or a key switch for stepless dimming of the knob resistor according to requirements. When the knob switch is selected, a switch circuit board is arranged inside the knob switch, and the switch circuit board comprises a switch chip driving module 411 and a switch CAN bus communication module 412. The switch chip driving module 411 comprises an STM32F103C8T6 chip, and the switch CAN bus communication module 412 is a TJA1050 communication module; pins of the STM32F103C8T6 chip of the switch chip driving module 411 are electrically connected with the LED lamp bead light guide ring. The ADC pin of the STM32F103C8T6 chip of the switch chip driving module 411 is electrically connected with the knob resistor. The TOUCH key is connected to the TOUCH pin of the STM32F103C8T6 chip of the switch chip driving module 411.

The magnet rings 5 with 30-52 high wires or the combination of the magnet rings 5 and the iron ring are respectively arranged inside or outside the matching positions between the lamp holder 101 and the power supply assembly 3, between the power supply assembly 3 and the double-female-head assembly 2 and between the double-female-head assembly 2 and the switch assembly 4 for magnetic attraction matching, and in practical application, the magnetic attraction matching can be realized through buckling or interference fit as required.

Example 2

Please refer to fig. 14-17, fig. 4-13, fig. 24-25; in the figure, the modularized lamp based on can bus is mainly used as a flashlight emergency lamp, and the difference between the embodiment and the above embodiment is that the lamp cap is a side lamp cap 102, and the lamp beads are arranged at the side part of the side lamp cap 102; the number of the side lamp holders 102 can be actually more in the figure, and when the number of the side lamp holders 102 is more than two, the adjacent side lamp holders 102 are matched through a male-female head assembly; the lamp cap CAN bus communication modules 14 between the adjacent lamp caps 102 are connected in parallel with the low-level end of the CAN bus through the high-level end of the CAN bus of the electric signal and are connected with the switch CAN bus communication module 412; the lamp beads of the adjacent lamp holders 102 and the lamp holder circuit board are connected with the power supply assembly 3 in parallel through the power supply end and the zero line end of the electric signals. The side lamp cap 102 at the outermost side can be added with a sealing head 7 according to the requirement, and the sealing head 7 is matched with the side lamp cap through magnets, buckles or interference.

In practical applications, the lamp cap may be designed as a combination of embodiment 1 and embodiment 2, that is, a combination of the reflector cap 101 and the side cap 102, and the lamp beads are arranged on the top and the side of the lamp cap; the lamp cap CAN bus communication module 14 between the adjacent lamp cap 101 and the side lamp cap 102 is connected in parallel with the CAN bus low level end through the CAN bus high level end of the electric signal and is connected with the switch CAN bus communication module 412; the lamp beads of the adjacent spot lamp holders 101 and the side lamp holders 102 and the lamp holder circuit board are connected in parallel with the power supply assembly 3 through the power supply end and the zero line end of the electric signals.

Example 3

Please refer to fig. 18-19, fig. 4-13, fig. 24-25; in the figure, the modularized lamp based on can bus is mainly used as a wall lamp, and the difference between the embodiment and the embodiment 2 is that a wall-mounted base 6 is added between the side lamp cap and the power supply component, so that the lamp is convenient to be fixed on a wall to be used as a wall lamp, and in order to achieve the effect, the matched position of the wall-mounted base 6 and the power supply component 3 as well as the side lamp cap 102 can be designed into a male-female head component, wherein the female head of the wall-mounted base 6 is matched with the side lamp cap 102, and the male head of the wall-mounted base 6 is matched with the power supply component 3.

Example 4

Referring to fig. 20, the can bus-based modular lamp in fig. 24 to 25 is mainly used as a wall lamp, and the difference between the present embodiment and embodiment 3 is that an external power component, such as an indoor power, is used to replace the mobile power or wireless charging mode in embodiment 3 to provide power, and the power supply is realized by combining with an adapter. To achieve this effect, the mobile power supply of example 3 is removed, and the wall mount base 6 is designed with a double female head assembly, and the wall mount base 6 is also designed with an adapter socket that mates with the conductive ring of the double female head assembly 2, so that the adapter converts 220 volts to five volts for use in the system for each component.

Example 5

Please refer to fig. 18-19, fig. 4-13, fig. 24-25; the modularized lamp based on can bus in the figure is mainly used as a desk lamp, and the difference between the lamp and the embodiment 2 is that a desk lamp base 8 is added, two desk lamp bus heads 81 with conducting rings are arranged on the desk lamp base 8, and the desk lamp base 8 is electrically connected with the power supply component 3, the side lamp head 102 and the switch component 4 through the desk lamp bus heads 81. The switch assembly 4 may be mounted on the base 81 of the base 8 or may be mounted on the base of the side light 102. In practical application, in order to adjust the illumination angle, the side lamp holder 102 and the power supply assembly 3 can be additionally provided with the bent tube 9, the position where the bent tube 9 is matched with the side lamp holder 102 is provided with the female head, the position where the bent tube 9 is matched with the power supply assembly 3 is provided with the male head, and the female head and the male head on the bent tube 9 are in electrical signal connection. In order to improve the illumination quantity, at least two side lamp holders 102 can be designed, and adjacent side lamp holders 102 are matched through a male-female head assembly; the lamp cap CAN bus communication modules 14 between the adjacent lamp caps 102 are connected in parallel with the low-level end of the CAN bus through the high-level end of the CAN bus of the electric signal and are connected with the switch CAN bus communication module 412; the lamp beads of the adjacent lamp holders 102 and the lamp holder circuit board are connected with the power supply assembly 3 in parallel through the power supply end and the zero line end of the electric signals.

Example 6

Referring to fig. 23, the modular lamp based on can bus in fig. 24 to 25 is mainly used as a pendant lamp, and the difference between the present embodiment and embodiment 2 is that an external power module is used to replace the mobile power supply in embodiment 2, i.e. a hanger 10 is designed, and an adapter socket is designed on the hanger 10 to provide power, and the hanger 10 is electrically connected to each component of the system through four wires, i.e. four wire signal wires 1001. In practical applications, the side light 102 may be arranged in parallel.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention are clearly and completely described above in conjunction with the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

In the above embodiments, the external overall shape of the lamp cap and/or the double-female head assembly and/or the power supply assembly and/or the switch assembly is a whole cylinder or a conical cylinder or a square prism.

In the above embodiments, in practical application, the power supply assembly may be a wireless power supply assembly with a fixed power supply mode or a mobile power supply mode, such as a charger or a wireless power supply mode, which specifically includes a transmitter and a receiver, and reference is specifically made to the prior art.

Accordingly, the above detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Claims

1. Modularized lamp based on can bus, its characterized in that: comprises a mutual electric signal connection switch assembly, at least one lamp cap and a power supply assembly; the lamp cap comprises a lamp bead and a lamp cap circuit board; the lamp cap circuit board comprises a lamp cap chip driving module and a lamp cap CAN bus communication module which are connected with each other through electric signals; the lamp cap chip driving module is connected with the lamp beads; the switch assembly comprises a switch circuit board, wherein the switch circuit board comprises a switch chip driving module and a switch CAN bus communication module which are mutually connected by electric signals; the high-level end and the low-level end of the switch CAN bus communication module are respectively connected with the high-level end and the low-level end of the lamp cap CAN bus communication module, and the power supply assembly is electrically connected with the lamp cap and the switch assembly; a double-female-head assembly for electric signal transmission is arranged between the power supply assembly and the switch assembly; the lamp cap, the power supply component, the double-female-head component and the switch component are sequentially matched through magnets, buckles or interference fit; the lamp cap, the power supply assembly, the double-female-head assembly and the switch assembly are sequentially matched through magnets, namely, each part is provided with a magnet ring which is positioned inside or outside the part at the matched position; the lamp cap, the power supply assembly, the double-female-head assembly and the switch assembly are connected through the male-female-head assembly in sequence to realize electric signal connection; the male and female head assembly comprises a male head and a female head which are mutually connected through electric signals; the male head is provided with a plurality of pins arranged at intervals, the female head is provided with a plurality of conducting rings arranged at intervals, and the conducting rings are matched with the pins to form a power supply end, a zero line end, a CAN bus high-level end and a CAN bus low-level end which form an electric signal line; the lamp bead, the lamp cap circuit board and the switch component are connected in parallel between the power supply end and the zero line end; the lamp cap CAN bus communication module and the switch CAN bus communication module are connected in parallel between the CAN bus high-level end and the CAN bus low-level end; when the lamp holders are multiple, the adjacent lamp holders are connected with each other in parallel with the signal wires through the CAN bus communication modules, the electric signal connection is carried out on each part by adopting the CAN bus communication modules, the contact pins and the conducting rings, each lamp holder and other parts CAN be assembled and installed in a modular free mode, namely, the first lamp holder and the added lamp holders CAN be mutually overlapped without influencing the original circuit line communication, so that the installation quantity of the lamp holders CAN be increased or reduced as required, and the lamp holders CAN be mutually overlapped and controlled in a one-to-many mode through a switch assembly.

2. The can bus based modular luminaire of claim 1, wherein: the lamp cap chip driving module and the switch chip driving module comprise STM32F103C8T6 chips, and the lamp cap CAN bus communication module and the switch CAN bus communication module are TJA1050 communication modules; pins of an STM32F103C8T6 chip of the lamp cap chip driving module are connected with lamp bead electric signals; the switch component is a knob switch, a sound control switch, a WIFI switch, a Bluetooth switch, an infrared switch or a gesture switch.

3. The can bus based modular luminaire of claim 2, wherein: the knob switch is provided with one or more of an LED lamp bead light guide ring, a knob resistor and a touch key; the switch chip driving module is connected with one or more of the LED lamp bead light guide ring, the knob resistor and the touch key.

4. A can bus based modular light fixture as defined in claim 3 wherein: the contact pins are arranged at 4 annular intervals, and the conducting rings are also arranged at 4 annular intervals.

5. The can bus based modular luminaire of claim 4, wherein: the outer overall shape of the lamp cap and/or the double female head assembly and/or the power supply assembly and/or the switch assembly is a full cylinder or a conical cylinder or a square prism.

6. The can bus based modular luminaire of claim 1, wherein: the lamp cap is a spotlight cap, and the lamp beads of the spotlight cap are arranged at the top of the lamp cap; the power supply component is matched with the double female head component through the male head and the female head in sequence, and the double female head component is matched with the switch component through the female head and the male head in sequence.

7. The can bus based modular luminaire of claim 1, wherein: the lamp cap is a side lamp cap, and lamp beads of the side lamp cap are arranged on the side part of the lamp cap; the side lamp holder passes through public head, female head in proper order and power supply module cooperation, and power supply module passes through public head, female head and the cooperation of two female head subassemblies in proper order, and two female head subassemblies pass through female head, public head and switch module cooperation in proper order.

8. The can bus based modular luminaire of claim 7, wherein: the number of the side lamp caps is at least two, and adjacent side lamp caps are matched through a male and female head assembly; the lamp cap CAN bus communication modules between adjacent lamp caps are connected in parallel with the CAN bus low-level end through the CAN bus high-level end of the electric signal and are connected with the switch CAN bus communication module; the lamp beads of the adjacent side lamp holders and the lamp holder circuit board are connected with the power supply assembly in parallel through the power supply end and the zero line end of the electric signals.

9. The can bus based modular luminaire of claim 1, wherein: the lamp cap is a combination of a shooting lamp cap and a side lamp cap, and lamp beads are arranged at the top and the side parts of the lamp cap; the lamp cap CAN bus communication module between the adjacent lamp cap and the side lamp cap is connected with the CAN bus low-level end in parallel through the CAN bus high-level end of the electric signal and is connected with the switch CAN bus communication module; the lamp beads of the adjacent spot lamp heads and the side lamp heads are connected with the power supply assembly in parallel through the power supply end and the zero line end of the electric signals.

10. The can bus based modular luminaire of claim 7 or 8, wherein: the side lamp holder is further provided with a seal head, and the seal head is matched with the side lamp holder through a magnet, a buckle or interference.

11. The can bus based modular luminaire of claim 1, wherein: the lamp cap is a side lamp cap, and lamp beads of the side lamp cap are arranged on the side part of the lamp cap; the side lamp cap and the front part of the power supply component are provided with wall-hanging bases; the wall-mounted base is provided with a male head at the position matched with the side lamp cap, and a female head at the position matched with the power supply component; the side lamp cap, the wall hanging base, the power supply component and the switch component are connected through electric signals in sequence.

12. The can bus based modular luminaire of claim 11, wherein: the modularized lamp based on the can bus further comprises a desk lamp base, the desk lamp base is provided with a mother head, the desk lamp base is connected with the power supply assembly, the side lamp cap and the switch assembly through electrical signals, and the lamp beads of the side lamp cap are arranged on the side portion of the lamp cap.

13. The can bus based modular luminaire of claim 12, wherein: and an elbow is arranged between the side lamp cap and the power supply component, a female joint is arranged at the position where the elbow is matched with the side lamp cap, a male joint is arranged at the position where the elbow is matched with the power supply component, and the female joint and the male joint on the elbow are in electric signal connection.

14. The can bus based modular luminaire of claim 12, wherein: the number of the side lamp caps is at least two, and adjacent side lamp caps are matched through a male and female head assembly; the lamp cap CAN bus communication modules between adjacent lamp caps are connected in parallel with the CAN bus low-level end through the CAN bus high-level end of the electric signal and are connected with the switch CAN bus communication module; the lamp beads of the adjacent side lamp holders and the lamp holder circuit board are connected with the power supply assembly in parallel through the power supply end and the zero line end of the electric signals.