CN215599527U - Control panel with multiple signals - Google Patents
Control panel with multiple signals Download PDFInfo
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- CN215599527U CN215599527U CN202121360811.4U CN202121360811U CN215599527U CN 215599527 U CN215599527 U CN 215599527U CN 202121360811 U CN202121360811 U CN 202121360811U CN 215599527 U CN215599527 U CN 215599527U
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Abstract
The utility model discloses a control panel with multiple signals, which is characterized in that a main control chip is arranged on a first circuit board, a signal conversion circuit is arranged on a second circuit board, interface circuits are arranged on the first circuit board and the second circuit board to realize the signal connection of the two circuit boards, and an external interface circuit is arranged on the second circuit board to be connected with external equipment; meanwhile, various transmission protocols are reserved in the main control chip, so that the main control chip can select the corresponding transmission protocol to transmit signals according to the transmission protocol used by the signal conversion circuit, the control panel can carry out various signal communications, and the selectivity of the control equipment of the control panel is greatly increased. Meanwhile, the main control chip and the signal conversion circuit are arranged on different circuit boards, so that the second circuit board with the signal conversion circuit matched with the equipment can be conveniently and quickly replaced under the condition that the equipment is not matched with the signal conversion circuit.
Description
Technical Field
The utility model relates to the technical field of equipment control in smart home, in particular to a control panel with multiple signals.
Background
In a central control system in an intelligent home, for the control of equipment, the transmission signal CAN be a wireless transmission signal (such as Bluetooth and ZigBee) or a wired transmission signal (such as RS485 and CAN).
At present, the existing control panel adopts one signal for transmission, if various transmission signals appear in the scheme, the panel can not control certain equipment, and the control range is greatly limited. Although some conversion modules, such as a ZigBee conversion CAN or a 485 conversion CAN, are used, due to uncertain factors such as hardware difference or signal distortion, the control effect after conversion is possibly not ideal, and the diversity of host equipment in centralized wiring of the smart home is greatly reduced.
SUMMERY OF THE UTILITY MODEL
In view of the problems in the prior art, a primary object of the present invention is to provide a control panel with multiple signals, which aims to solve the problem of compatibility of the control panel under different signals.
In order to achieve the above object, the control panel with multiple signals provided by the present invention includes a first circuit board and a second circuit board, wherein the first circuit board is provided with a main control chip and a first interface circuit, and the second circuit board is provided with a second interface circuit, a signal conversion circuit and an external interface circuit;
the main control chip is connected with the second interface circuit through the first interface circuit, and the second interface circuit is connected with the external interface circuit through a signal conversion circuit;
the main control chip is used for selecting a corresponding transmission protocol according to the transmission protocol used by the signal conversion circuit; the signal conversion circuit is used for converting the received first signal output by the main control chip into a second signal corresponding to the transmission protocol used by the main control chip, and the external interface circuit is used for outputting the second signal.
Optionally, the main control chip is a single chip microcomputer with a model number of MM32F103RxT 6.
Optionally, the signal conversion circuit includes an RS485 signal conversion circuit and a CAN signal conversion circuit, the RS485 signal conversion circuit is configured to convert the TTL signal into a 485 signal, and the CAN signal conversion circuit is configured to convert the TTL signal into a CAN signal.
Optionally, the first circuit board is further provided with a first voltage conversion circuit for converting a 5V voltage into a 3.3V voltage, and the first voltage conversion circuit is connected to the main control chip through the first interface circuit.
Optionally, the second circuit board is further provided with a second voltage conversion circuit for converting 12V-24V voltage into 5V voltage, a voltage output end of the second voltage conversion circuit is connected to a 12V-24V power supply through the external interface circuit, and an output end of the second voltage conversion circuit is connected to the first voltage conversion circuit.
Optionally, a key circuit is disposed on the first circuit board and connected to the main control chip.
Optionally, a light control circuit is arranged on the first circuit board and connected with the main control chip.
The utility model provides a control panel, which is designed by adopting two circuit boards, wherein a main control chip is arranged on a first circuit board, a signal conversion circuit is arranged on a second circuit board, interface circuits are arranged on the first circuit board and the second circuit board to realize the signal connection of the two circuit boards, and an external interface circuit is arranged on the second circuit board to be connected with external equipment; meanwhile, various transmission protocols are reserved in the main control chip, so that the main control chip can select the corresponding transmission protocol to transmit signals according to the transmission protocol used by the signal conversion circuit, the control panel can carry out various signal communications, and the selectivity of the control equipment of the control panel is greatly increased.
Meanwhile, the main control chip and the signal conversion circuit are arranged on different circuit boards, so that the second circuit board with the signal conversion circuit matched with the equipment can be conveniently and quickly replaced under the condition that the equipment is not matched with the signal conversion circuit.
Drawings
FIG. 1 is a schematic block diagram of an embodiment of a control panel having multiple signals according to the present invention;
FIG. 2 is a circuit diagram of a main control chip in an embodiment of a control panel with various signals according to the present invention;
FIG. 3 is a circuit diagram of a first interface circuit according to an embodiment of the present invention;
FIG. 4 is a circuit diagram of a second interface circuit of an embodiment of a control panel with various signals according to the present invention;
FIG. 5 is a circuit diagram of an RS485 signal conversion circuit in an embodiment of a control panel with multiple signals according to the present invention;
FIG. 6 is a schematic circuit diagram of a CAN signal conversion circuit in an embodiment of a control panel with multiple signals according to the present invention;
FIG. 7 is a circuit diagram of an external interface circuit according to an embodiment of the present invention;
FIG. 8 is a circuit diagram of a first voltage converting circuit according to an embodiment of the present invention;
FIG. 9 is a circuit diagram of a second voltage converting circuit according to an embodiment of the present invention;
FIG. 10 is a schematic circuit diagram of a key circuit in an embodiment of a control panel with various signals according to the present invention;
FIG. 11 is a circuit diagram of a key backlight display circuit in an embodiment of a control panel with multiple signals according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 of the specification, an embodiment of the present invention provides a control panel with multiple signals, which includes a first circuit board 100 and a second circuit board 200, wherein the first circuit board 100 is provided with a main control chip 110 and a first interface circuit 120, and the second circuit board 200 is provided with a second interface circuit 210, a signal conversion circuit 220, and an external interface circuit 230. The main control chip 110 is connected to the second interface circuit 210 through the first interface circuit 120, and the second interface circuit 210 is connected to the external interface circuit 230 through the signal conversion circuit 220.
As shown in fig. 2, the main control chip 110 is a single chip microcomputer designed by shanghai flexible microelectronics corporation and having a model number of MM32F103RxT6, transmission protocols such as ISP, UART, ICC, and CAN are reserved in the single chip microcomputer, and a corresponding transmission protocol CAN be selected according to the transmission protocol used by the signal conversion circuit 220.
As shown in fig. 3 to 4, the first interface circuit 120 and the second interface circuit 210 are connected to each other to realize communication control between the main control chip 110 and the signal conversion circuit 220.
The signal conversion circuit 220 is configured to convert the received first signal output by the main control chip 110 into a second signal corresponding to a transmission protocol used by the main control chip. Specifically, as shown in fig. 5 to 6, in the present embodiment, the signal conversion circuit 220 includes an RS485 signal conversion circuit 221 and a CAN signal conversion circuit 222, where the RS485 signal conversion circuit 221 uses a 485 protocol chip with a model TD541S485H as a core, and is configured to convert a TTL signal into a 485 signal and output the 485 signal to the external interface circuit 230; the CAN signal conversion circuit 220 and the signal conversion circuit 222 take a CAN protocol chip with a model TD541SCANH as a core, and are configured to convert TTL signals into CAN signals and output the CAN signals to the external interface circuit 230.
As shown in fig. 7, the external interface circuit 230 is a single row of 7 pins, and is used for outputting 485 signals and CAN signals, and accessing 12V-24V voltage to supply power to the circuit modules on the first circuit board 100 and the second circuit board 200.
Since the operating voltages of the main control chip 110, the 485 protocol chip, and the CAN protocol chip are 3.3V, a first voltage conversion circuit and a second voltage conversion circuit are respectively disposed on the first circuit board 100 and the second circuit board 200, as shown in fig. 8-9, the second voltage conversion circuit is connected to an external 12V-24V voltage through the external interface circuit 230, and then converts the 12V-24V voltage into a 5V voltage, which is output to the first voltage conversion circuit, and then the first voltage conversion circuit converts the 5V voltage into a 3.3V voltage to supply power to the first circuit board 100 and the second circuit board 200.
The utility model provides a control panel, which adopts the design of two circuit boards, a main control chip 110 is arranged on a first circuit board 100, a signal conversion circuit 220 is arranged on a second circuit board 200, interface circuits are arranged on the first circuit board 100 and the second circuit board 200 to realize the signal connection of the two circuit boards, and an external interface circuit 230 is arranged on the second circuit board 200 to be connected with external equipment; meanwhile, a plurality of transmission protocols are reserved in the main control chip 110, so that the main control chip 110 can select a corresponding transmission protocol to transmit signals according to the transmission protocol used by the signal conversion circuit 220, and thus the control panel can perform a plurality of signal communications, and the selectivity of the control equipment of the control panel is greatly increased.
Meanwhile, since the main control chip 110 and the signal conversion circuit 220 are disposed on different circuit boards, the second circuit board 200 having the signal conversion circuit 220 adapted to the device can be quickly replaced conveniently when the device is not adapted to the signal conversion circuit 220.
In the present embodiment, the key circuit 130 is disposed on the first circuit board 100. Specifically, as shown in fig. 10, the key circuit 130 includes 8 keys, and the 8 keys are respectively connected to the MCUs _ SW 1-MCUs _ SW8 of the main control chip 110, so that a user can define the functions of the keys as required to control the external devices of the control panel.
In addition, in the present embodiment, the key backlight display circuit 140 is disposed on the first circuit board 100, and specifically, as shown in fig. 11, the key backlight display circuit 140 has backlight display circuits corresponding to the keys, and the backlight display circuits are respectively connected to the MCU _ LED _ Y1 to MCU _ LED _ Y8 of the main control chip 110, so as to protrude the keys in a dark environment for the user to search for the keys.
The above description is only a preferred embodiment of the present invention and should not be taken as limiting the utility model, and any minor modifications, equivalents and improvements made to the above embodiment according to the technical spirit of the present invention should be included in the protection scope of the technical solution of the present invention.
Claims (7)
1. A control panel with multiple signals is characterized by comprising a first circuit board and a second circuit board, wherein a main control chip and a first interface circuit are arranged on the first circuit board, and a second interface circuit, a signal conversion circuit and an external interface circuit are arranged on the second circuit board;
the main control chip is connected with the second interface circuit through the first interface circuit, and the second interface circuit is connected with the external interface circuit through a signal conversion circuit;
the main control chip is used for selecting a corresponding transmission protocol according to the transmission protocol used by the signal conversion circuit; the signal conversion circuit is used for converting the received first signal output by the main control chip into a second signal corresponding to the transmission protocol used by the main control chip, and the external interface circuit is used for outputting the second signal.
2. The control panel with multiple signals according to claim 1, wherein the master control chip is a single chip microcomputer with a model number of MM32F103RxT 6.
3. The control panel with multiple signals according to claim 2, wherein said signal conversion circuit comprises an RS485 signal conversion circuit and a CAN signal conversion circuit, said RS485 signal conversion circuit is used for converting TTL signals to 485 signals, and said CAN signal conversion circuit is used for converting TTL signals to CAN signals.
4. The control panel with multiple signals according to claim 1, wherein the first circuit board further comprises a first voltage conversion circuit for converting a voltage of 5V into a voltage of 3.3V, and the first voltage conversion circuit is connected to the main control chip through the first interface circuit.
5. The control panel with multiple signals according to claim 4, wherein the second circuit board further comprises a second voltage conversion circuit for converting 12V-24V voltage into 5V voltage, the voltage output terminal of the second voltage conversion circuit is connected to the 12V-24V power supply through the external interface circuit, and the output terminal of the second voltage conversion circuit is connected to the first voltage conversion circuit.
6. The control panel with multiple signals according to claim 1, wherein the first circuit board is provided with a key circuit, and the key circuit is connected with the main control chip.
7. The control panel with multiple signals according to claim 6, wherein a key backlight display circuit is disposed on the first circuit board and connected to the main control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121360811.4U CN215599527U (en) | 2021-06-18 | 2021-06-18 | Control panel with multiple signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121360811.4U CN215599527U (en) | 2021-06-18 | 2021-06-18 | Control panel with multiple signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215599527U true CN215599527U (en) | 2022-01-21 |
Family
ID=79875587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121360811.4U Active CN215599527U (en) | 2021-06-18 | 2021-06-18 | Control panel with multiple signals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215599527U (en) |
-
2021
- 2021-06-18 CN CN202121360811.4U patent/CN215599527U/en active Active
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