CN203720815U - Exhibition platform touch-control key - Google Patents
Exhibition platform touch-control key Download PDFInfo
- Publication number
- CN203720815U CN203720815U CN201320589371.9U CN201320589371U CN203720815U CN 203720815 U CN203720815 U CN 203720815U CN 201320589371 U CN201320589371 U CN 201320589371U CN 203720815 U CN203720815 U CN 203720815U
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- CN
- China
- Prior art keywords
- touch
- key
- capacitive sensing
- exhibition booth
- control contact
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
The utility model belongs to the technical field of exhibition platforms, and particularly relates to an exhibition platform touch-control key. The exhibition platform touch-control key comprises a capacitive sensing chip connected with an exhibition platform main board, and a touch-control contact key connected with the capacitive sensing chip and bearing function and/or switch instructions. The exhibition platform touch-control key prolongs the service lift of an exhibition platform; an operator only needs to touch the touch-control contact key lightly rather than press the touch-control contact key, and then all functions of a common mechanical key can be achieved; moreover, the exhibition platform achieves the design effect of being more beautiful and fashionable.
Description
Technical field
The utility model belongs to the technical field of exhibition booth, relates in particular to a kind of exhibition booth touch controlled key.
Background technology
At present video presenter with function key or shift knob be all to adopt mechanical push-key type switch, the mode of this mechanical key switch is controlled exhibition booth, button can exist into dust through long-term use, button aged deterioration etc. cause control bad.
Utility model content
The technical problems to be solved in the utility model be exhibition booth mechanical push-key type switch through long-term use can exist into dust, aged deterioration etc. cause control bad, not enough and a kind of exhibition booth touch controlled key is provided for prior art.
The utility model solves the technical scheme that its technical matters adopts: a kind of exhibition booth touch controlled key, it comprises that the capacitive sensing chip being connected with exhibition booth mainboard is connected with capacitive sensing chip and the touch-control contact-key of bearing function and/or switch order.
Further: in the touch controlled key of above-mentioned exhibition booth, described touch-control contact-key is provided with light emitting diode.When finger is pressed moment, light emitting diode can be luminous, to increase the experience of controlling of finger, when finger leaves latter one second, light emitting diode can extinguish, conserve energy, when certainly light is bad, the light emitting diode on touch-control contact-key is just in time corrected this problem, and handled easily person is clear sees button clearly.Described capacitive sensing chip is provided with capacitive sensing pin, and described capacitive sensing pin is connected with touch-control contact-key.Capacitive sensing chip is detected the variation of the electric capacity on each capacitive sensing pin in time, to send in time corresponding instruction to exhibition booth mainboard.Described touch-control contact-key is at least one group, and when the feature button of exhibition booth or release knob have when multinomial, touch-control contact-key is exactly corresponding many groups with it.Certainly, in order to prevent that light emitting diode from being burnt out by large electric current by moment, described touch-control contact-key is provided with the current-limiting resistance of connecting with light emitting diode.Described capacitive sensing chip is provided with the pilot lamp pin that represents exhibition booth mainboard ON \ OFF, the pilot lamp pin blue two pilot lamp pins of sharing out bonus, blue pilot lamp pin is connected with the blue LED that represents the normal work of exhibition booth mainboard, and red pilot lamp pin is connected with the red light emitting diodes that represents exhibition booth mainboard standby.
Further again: described touch-control contact-key is connected with the driving power of TLV7113 model.Described exhibition booth mainboard is connected with capacitive sensing chip by I2C bus.Described capacitive sensing chip is CY8C21434 model.
The utility model utilizes body capacitance principle of induction, and touch controlled key is responded to human body, and the mode that substitutes mechanical key to realize is carried out controlling of video presenter.Can accomplish dustless airtightly, also avoid mechanical switch to use for a long time and produce aging problem.
Implement the technical solution of the utility model, there is following useful technique effect:
Exhibition booth touch controlled key is compared with traditional exhibition booth mechanical key, it extends the serviceable life of machine, and operator need only touch touch-control contact-key, and does not need to press touch-control contact-key, just can complete all functions of standard machinery formula button, and exhibition booth design effect also can more attractive in appearance and fashion.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model embodiment;
Fig. 2 is the circuit diagram of the utility model embodiment capacitive sensing chip;
Fig. 3 is the utility model embodiment touch-control contact-key circuit diagram;
Fig. 4 is the utility model embodiment driving power circuit figure.
Specific embodiments
With reference to the drawings and the specific embodiments, the utility model is described.
As Fig. 1: a kind of exhibition booth touch controlled key, it comprises that the capacitive sensing chip being connected with exhibition booth mainboard is connected with capacitive sensing chip and the touch-control contact-key of bearing function and/or switch order.
As Fig. 2: capacitive sensing chip is CY8C21434 model, it is provided with capacitive sensing pin, described capacitive sensing pin is connected with touch-control contact-key, capacitive sensing chip pin 14 is red pilot lamp pins, red pilot lamp pin is connected with the red light emitting diodes that represents exhibition booth mainboard standby, capacitive sensing chip pin 15 is blue pilot lamp pins, and blue pilot lamp pin is connected with the blue LED that represents the normal work in exhibition booth.
As Fig. 3: as described in touch-control contact-key be 18 groups.Between touch-control contact-key, be to be connected in parallel, touch-control contact-key is provided with light emitting diode, on the touch-control contact-key of the 1st group and the 9th group, is provided with the current-limiting resistance R connecting with light emitting diode.
As Fig. 4: as described in touch-control contact-key be connected with the driving power of TLV7113 model.Change into+the 3.3V of power supply signal that TLV7113 carrys out exhibition booth mainboard, is responsible for to whole touch-control contact-key power supply.
Exhibition booth mainboard carries out communication by I2C bus and capacitive sensing chip CY8C21434.When having human body to touch touch-control contact-key or other to have the object contact touch-control contact-key of capacitive, CY8C21434 can think has button to trigger, and now signals to exhibition booth mainboard, and exhibition booth mainboard sends instruction and carries out corresponding feature operation.When finger is pressed moment, whole LED 1--LED18 can be luminous, and to increase the experience of controlling of finger, when finger leaves latter one second, whole LED 1--LED18 can extinguish, and saves the energy.
The above is preferred embodiment of the present utility model, is not departing from the utility model design situation, carries out any apparent distortion and replacement, all belongs to protection domain of the present utility model.
Claims (5)
1. an exhibition booth touch controlled key, is characterized in that: comprise the capacitive sensing chip being connected with exhibition booth mainboard, with the touch-control contact-key being connected with capacitive sensing chip and have bearing function and/or switch order; Described touch-control contact-key is provided with light emitting diode; Described capacitive sensing chip is provided with capacitive sensing pin, and described capacitive sensing pin is connected with touch-control contact-key.
2. exhibition booth according to claim 1 touch controlled key, is characterized in that: described touch-control contact-key is at least one group.
3. exhibition booth according to claim 2 touch controlled key, is characterized in that: described touch-control contact-key is provided with the current-limiting resistance of connecting with light emitting diode.
4. exhibition booth according to claim 1 touch controlled key, is characterized in that: described capacitive sensing chip is provided with the pilot lamp pin that represents exhibition booth mainboard ON \ OFF.
5. according to the exhibition booth touch controlled key described in any one in claim 1-4, it is characterized in that: described exhibition booth mainboard is connected with capacitive sensing chip by I2C bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320589371.9U CN203720815U (en) | 2013-09-24 | 2013-09-24 | Exhibition platform touch-control key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320589371.9U CN203720815U (en) | 2013-09-24 | 2013-09-24 | Exhibition platform touch-control key |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203720815U true CN203720815U (en) | 2014-07-16 |
Family
ID=51159952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320589371.9U Expired - Lifetime CN203720815U (en) | 2013-09-24 | 2013-09-24 | Exhibition platform touch-control key |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203720815U (en) |
-
2013
- 2013-09-24 CN CN201320589371.9U patent/CN203720815U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150921 Address after: 100086 Beijing Haidian District information on Road No. 11, room 407, floor 405 West Fourth Patentee after: BEIJING HONGHE INTELLIGENT SYSTEMS Co.,Ltd. Address before: 100000 room C, block C1104, No. 9, 3rd Street, Beijing, Haidian District Patentee before: HONGHE TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100086 Beijing Haidian District information on Road No. 11, room 407, floor 405 West Fourth Patentee after: BEIJING HITEVISION INTELLIGENT SOLUTIONS CO.,LTD. Address before: 100086 Beijing Haidian District information on Road No. 11, room 407, floor 405 West Fourth Patentee before: BEIJING HONGHE INTELLIGENT SYSTEMS Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |