CN206178792U - A infrared touch frame that is used for infrared touch frame's USB expander circuit and many USB interfaces - Google Patents
A infrared touch frame that is used for infrared touch frame's USB expander circuit and many USB interfaces Download PDFInfo
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- CN206178792U CN206178792U CN201621018638.9U CN201621018638U CN206178792U CN 206178792 U CN206178792 U CN 206178792U CN 201621018638 U CN201621018638 U CN 201621018638U CN 206178792 U CN206178792 U CN 206178792U
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- mcu
- usb
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- infrared touch
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Abstract
The utility model provides an infrared touch frame that is used for infrared touch frame's USB expander circuit and many USB interfaces, belongs to infrared touch -screen technical field. The utility model discloses a USB expander circuit that is used for infrared touch frame includes main MCU, at least one changes MCU, and main MCU connects conversion MCU, main MCU and conversion MCU all are equipped with the USB interface, the utility model discloses an infrared touch frame of many USB interfaces includes the framework, locate the framework at least on one side infrared transmitting tubes and locate the infrared receiving tube of the relative side of infrared transmitting tubes, infrared transmitting tubes is connected with the transmitting circuit, and infrared receiving tube is connected with receiving circuit, and transmitting circuit and receiving circuit all are connected to control circuit, USB expander circuit has: main control unit in locating control circuit, at least one switching controller, main control unit connects switching controller, and main control unit and switching controller are connected to a plurality of USB interfaces of locating the framework respectively. The utility model discloses only through increasing conversion MCU and relevant interconnecting link, can increase infrared touch frame's USB interface.
Description
Technical field
This utility model is related to Infrared touch screen technology field, more particularly to a kind of usb expansion for infrared touch frame
The infrared touch frame of circuit and multi-USB interface.
Background technology
The housing of existing infrared touch panel can typically be provided with com interface and USB interface, to connect external equipment, by
In serial communication speed typically between 1.2 ~ 115.2kbps, and the speed of USB 2.0 can reach 12,000 kbps,
The significantly larger than traffic rate of serial ports, infrared touch panel reacts when in use sensitiveer, touches experience effect more preferable.With
The progress of science and technology, most of equipment gradually adopt traffic rate higher and the wider array of USB interface of versatility is used as leading to
Letter interface, and com interface is then slowly replaced.The speed of serial communication is typically between 1.2 ~ 115.2kbps, and USB 2.0
Speed can reach 12,000 kbps, to be significantly larger than the traffic rate of serial ports, infrared touch panel reacts when in use cleverer
It is quick, touch experience effect more preferable.Gu this will simultaneously connect two to the existing infrared touch panel with a USB interface
The convenience during external equipment of USB interface causes no small impact, needs the conversion that signal is carried out by other devices.
Utility model patent such as Application No. CN201120145405.6 discloses a kind of COM port adapter of connection USB device,
Including：Com interface, to be connected with COM port；USB interface, to be connected with USB device；Signal conversion circuit, it is and described
Com interface connects, to the mutual conversion to RS232 signals and usb signal；Voltage quasi position change-over circuit, turns with the signal
Circuit and USB interface connection are changed, the voltage quasi position that the COM port is exported is converted into into the work electricity of the USB device
Pressure level；Power supply circuits, are connected respectively, to the letter with the signal conversion circuit and the voltage quasi position change-over circuit
Number conversion circuit and the voltage quasi position change-over circuit are powered.But the conversion of signal is carried out by the device, is on the one hand taken
Band inconvenience, transfer infrared touch device while need to carry the adapter, while per it is secondary with when need to pick and place the switching
Device, process is loaded down with trivial details；On the other hand, the cost purchased increases, while also increasing the workload and cost of maintenance.
Utility model content
The purpose of this utility model is to solve the problems, such as above-mentioned prior art, there is provided one kind is used for infrared touch
The USB change-over circuits of frame and the infrared touch frame of multi-USB interface, it is by simply increasing component and relevant connecting line
Road, you can increase the USB interface of infrared touch frame, to improve its convenience being connected with external equipment, while cost is relatively low.
The purpose of this utility model is achieved through the following technical solutions：
A kind of usb expansion circuit for infrared touch frame, including main MCU, at least one conversion MCU, the main MCU connects
Meet the conversion MCU；The main MCU and conversion MCU are equipped with USB interface.
The USB change-over circuits change MCU by arranging, by main MCU except other signals of communication of usb signal are converted to
Usb signal, so as to other communication interfaces on infrared touch panel are converted to into USB interface.
Preferably, the main MCU and conversion MCU are equipped with SPI interface, the SPI interface of the main MCU is connected to wherein
The SPI interface of one conversion MCU.
This utility model also provides a kind of infrared touch frame of multi-USB interface, including framework, located at the framework at least
The infrared transmitting tube on side and the infrared receiving tube located at the infrared transmitting tube relative side；The infrared transmitting tube is connected with to be sent out
Transmit-receive radio road, the infrared receiving tube is connected with receiving circuit, and the radiating circuit and receiving circuit are connected to control circuit；Tool
There is usb expansion circuit：Including master controller, at least one switching controller in the control circuit；The main control
Device connects the switching controller, and the master controller and switching controller are respectively connecting to the multiple USB located at the framework
Interface.
Preferably, the master controller and switching controller are equipped with USB interface, the USB interface of the main controller and
The USB interface of the switching controller is connected at respectively multiple USB interface of the framework.
Preferably, the master controller and switching controller are equipped with SPI interface, the SPI interface of the master controller
Connect the SPI interface of the switching controller.
Preferably, the main controller is MCU.
Preferably, the switching controller is MCU.
The utility model has the advantages that：Without the need for larger change being done to control circuit or increasing other interconnecting devicies, only pass through
Increase conversion MCU and relevant connection line, you can easily other communication interfaces on infrared touch frame are converted to into versatility
Higher USB interface, drastically increases the convenience that infrared touch frame is connected with external equipment, while cost is relatively low.
Description of the drawings
Fig. 1 is the change-over circuit principle schematic of this utility model embodiment 1.
Specific embodiment
This utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Embodiment 1, as shown in figure 1, a kind of infrared touch frame of multi-USB interface, including framework, located at the framework at least
The infrared transmitting tube on one side and the infrared receiving tube located at the infrared transmitting tube relative side；The infrared transmitting tube is connected with
Radiating circuit, the infrared receiving tube is connected with receiving circuit, and the radiating circuit and receiving circuit are connected to control circuit.
The control circuit is additionally provided with usb expansion circuit：Including main MCU, at least one conversion MCU；The main MCU is original
There is the controller of infrared touch panel, it is provided with USB interface and SPI interface, the conversion MCU is provided with USB interface and SPI interface,
The SPI interface of one of them conversion MCU is connected to the SPI interface of the main MCU, the USB interface of the main MCU and conversion
The USB interface of MCU is respectively connecting to two USB interface located at the framework.The main MCU scripts and external device communication
COM signals are converted to usb signal by changing the effect of MCU, so as to the original com interface of infrared touch panel is converted to into USB
Interface, with the versatility for improving infrared touch panel and external device communication interface and the convenience that is connected, while cost is relatively low.
The above, only this utility model preferably specific embodiment, the specific embodiment is based on this practicality
A kind of implementation under new general idea, and protection domain of the present utility model is not limited thereto, it is any to be familiar with sheet
In the technical scope that this utility model is disclosed, the change or replacement that can be readily occurred in all should be contained those skilled in the art
Cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with the protection of claims
Scope is defined.
Claims (7)
1. a kind of usb expansion circuit for infrared touch frame, it is characterised in that including main MCU, at least one conversion MCU, institute
State main MCU and connect the conversion MCU；The main MCU and conversion MCU are equipped with USB interface.
2. the usb expansion circuit for infrared touch frame according to claim 1, it is characterised in that the main MCU and turn
Change MCU and be equipped with SPI interface, the SPI interface of the main MCU is connected to the SPI interface of one of them conversion MCU.
3. a kind of infrared touch frame of multi-USB interface, including framework, the infrared transmitting tube located at the framework at least one side and set
In the infrared receiving tube of the infrared transmitting tube relative side；The infrared transmitting tube is connected with radiating circuit, described infrared to connect
Closed tube is connected with receiving circuit, and the radiating circuit and receiving circuit are connected to control circuit；Characterized in that, having USB
Expanded circuit：Including master controller, at least one switching controller in the control circuit；The master controller connection
The switching controller, the master controller and switching controller are respectively connecting to the multiple USB interface located at the framework.
4. the infrared touch frame of multi-USB interface according to claim 3, it is characterised in that the master controller and conversion
Controller is equipped with the USB interface of USB interface, the USB interface of the master controller and the switching controller and connects respectively and sets
In multiple USB interface of the framework.
5. the infrared touch frame of multi-USB interface according to claim 3, it is characterised in that the master controller and conversion
Controller is equipped with SPI interface, and the SPI interface of the master controller connects the SPI interface of the switching controller.
6. the infrared touch frame of multi-USB interface according to claim 3, it is characterised in that the main controller is MCU.
7. the infrared touch frame of multi-USB interface according to claim 3, it is characterised in that the switching controller is
MCU。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621018638.9U CN206178792U (en) | 2016-08-31 | 2016-08-31 | A infrared touch frame that is used for infrared touch frame's USB expander circuit and many USB interfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621018638.9U CN206178792U (en) | 2016-08-31 | 2016-08-31 | A infrared touch frame that is used for infrared touch frame's USB expander circuit and many USB interfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206178792U true CN206178792U (en) | 2017-05-17 |
Family
ID=58674961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621018638.9U Active CN206178792U (en) | 2016-08-31 | 2016-08-31 | A infrared touch frame that is used for infrared touch frame's USB expander circuit and many USB interfaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206178792U (en) |
-
2016
- 2016-08-31 CN CN201621018638.9U patent/CN206178792U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 313000 3 three or four floors of No. 769, seven Li Ting Road, Huzhou, Zhejiang Patentee after: Jiage Technology (Zhejiang) Co., Ltd Address before: 313000, 1-2, 1, 1573 Hongfeng Road, Wuxing District, Zhejiang, Huzhou Patentee before: Huzhou Jiage Electronic Technology Co., Ltd. |
|
| CP03 | Change of name, title or address |