CN204759112U - Projecting apparatus and curtain coordinated control device - Google Patents
Projecting apparatus and curtain coordinated control device Download PDFInfo
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- CN204759112U CN204759112U CN201520379388.0U CN201520379388U CN204759112U CN 204759112 U CN204759112 U CN 204759112U CN 201520379388 U CN201520379388 U CN 201520379388U CN 204759112 U CN204759112 U CN 204759112U
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Abstract
The utility model discloses a projecting apparatus and curtain coordinated control device, this projecting apparatus and curtain coordinated control device includes: 51 single -chip module, MAX232 chip module, PNP triode module, relay module etc, the utility model has the advantages of: use 51 singlechips as core processor module, send projecting apparatus switch status inquiry order according to certain frequency through the MAX232 chip by processing program, when processing program received projecting apparatus switch state feedback signal through the MAX232 chip after, correspondingly provide control signal to PNP triode, then drive the dynamic relay module by the triode, positive reversal voltage by relay output control curtain motor, thereby finally realized when the projecting apparatus leaves, the curtain is automatic to fall, when the projecting apparatus closes, the automatic linkage function that rises of curtain. The utility model discloses simple structure has made things convenient for user's use greatly, has improved the automated management level.
Description
Technical field
The utility model belongs to automatic control technology field, particularly relates to a kind of projector and curtain linkage control device.
Background technology
Along with the development of multimedia technology, the application of projector is more and more extensive, carries out imparting knowledge to students, seeing video, business office, amusement etc. as utilized multimedia projector, very popular.And the use of projection screen is indispensable part in multimedia projector use procedure.Generally, curtain and the use of projector separate to control and management, adopts traditional power switch to control the lifting of curtain.
Along with the development of automatic technology, multimedia middle control system system is arisen at the historic moment.In intelligent multimedia classroom, multi-functional conference room, multimedia central control device is utilized to realize the overall-in-one control schema of the equipment such as projector, curtain, power amplifier, sound equipment, computing machine, i.e. one-touch unlatching or control all multimedia equipments, integrated level improves greatly, uses also very convenient.And in the simple occasion of some Application comparison, when as only needed projector and curtain, people begin one's study and use projector and curtain linked system, utilize projector power detector, after projector start or off-mode being detected, command adapted thereto is sent to curtain receiving trap, thus controls the lifting of curtain, the intelligent radio of manual intervention that do not need achieved between projector and curtain links.
Although above-mentioned two kinds of modes have achieved the coordinated signals function of projector and curtain, there is the defect of itself.As first kind of way, although utilize control device to achieve integrated control & management, because controlling functions is more, the less stable of opertaing device own, once a certain controlling functions inefficacy can have influence on the use of each equipment, operation circuit is comparatively complicated in addition, and maintenance difficulties is larger.The second way, although application is simple, utilizes intelligent radio to link, and just cannot realize interlock on the one hand when being subject to air interference or blocking, and this linkage function needs design to detect emitter and receiving control device in addition, comparatively complicated.
Utility model content
The purpose of this utility model be solve during current multimedia projector and curtain are unified to control exist complex circuit, unstable properties problem and provide that a kind of structure is simple, easy to install, the projector that improves automatic management efficiency and curtain linkage control device.
The utility model for solving the technical scheme that in known technology, Problems existing is taked is: projector and curtain linkage control device, its innovative point is: projector and curtain linkage control device, it is characterized in that, this device comprises: 51 one-chip computer modules, MAX232 chip module, PNP triode module, relay module; Described MAX232 chip module and described 51 one-chip computer modules are bi-directionally connected, described 51 one-chip computer module unidirectional connection PNP triode module, the unidirectional connection relay module of described PNP triode module.
The beneficial effects of the utility model are as follows: due to the employing of the utility model core processing module is 51 common series monolithics, after utilizing control program to obtain projector switching-state information by MAX232 chip, drive Control output voltage by PNP triode again, thus realize the lifting controlling curtain according to the on off state of projector.Structure is simple, programming convenience, stable performance, controlling functions by force, solve the problem described in background technology preferably.
Accompanying drawing explanation
Fig. 1 is the projector that provides of the utility model embodiment and curtain linkage control device structural representation.
Embodiment
For making utility model object of the present utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows: the module used by the utility model all belongs to known module.
As shown in Figure 1, the projector of the utility model embodiment and curtain linkage control device are primarily of 51 one-chip computer modules, MAX232 chip, relay module.
51 one-chip computer modules are core processor modules of the present utility model, major design utilizes to circulate in the unit interval and sends several times querying command, send according to the projector on off state inquired and control signal to relay accordingly, 51 described one-chip computer modules are processor module, send inquiry projector switching-state information by its handling procedure according to certain frequency, and control signal to relay accordingly according to the switching-state information transmission of feedback.
The communication of 51 single-chip microcomputers and projector is by RS232 Interface realization, 51 single-chip microcomputers and RS232 operation level inconsistent, need to be changed by MAX232 level shifting circuit, described MAX232 chip module is for realizing the level shifting circuit with projector serial communication.
The control signal of 51 single-chip microcomputers drives relay by PNP type triode, when transistor base is high level, PNP type triode is ended, relay does not work, otherwise triode ON, relay obtains electric adhesive, described relay module is the base voltage pilot relay whether action of PNP triode, the rotating controlling curtain motor is exported by the difference of relay, described handling procedure is used to inquiry projector switching-state information, and sends different control signals to PNP triode according to different states.Certain frequency refers to the number of times sending inquiry projector switching-state information within the unit interval.
The method of Control curtain electric shock rotating has a lot, not as the utility model scope.
Above-described embodiment is preferred embodiment of the present utility model; it is not the restriction to technical solutions of the utility model; as long as without the technical scheme that creative work can realize on the basis of above-described embodiment, all should be considered as falling within the scope of the rights protection of the utility model patent.
Claims (1)
1. projector and a curtain linkage control device, is characterized in that: this device comprises 51 one-chip computer modules, MAX232 chip module, PNP triode module, relay module; Described MAX232 chip module and described 51 one-chip computer modules are bi-directionally connected, described 51 one-chip computer module unidirectional connection PNP triode module, the unidirectional connection relay module of described PNP triode module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520379388.0U CN204759112U (en) | 2015-06-04 | 2015-06-04 | Projecting apparatus and curtain coordinated control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520379388.0U CN204759112U (en) | 2015-06-04 | 2015-06-04 | Projecting apparatus and curtain coordinated control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204759112U true CN204759112U (en) | 2015-11-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520379388.0U Expired - Fee Related CN204759112U (en) | 2015-06-04 | 2015-06-04 | Projecting apparatus and curtain coordinated control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204759112U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115243018A (en) * | 2022-05-27 | 2022-10-25 | 广州浩翔信息技术有限公司 | Central control device for projector curtain control and control method thereof |
-
2015
- 2015-06-04 CN CN201520379388.0U patent/CN204759112U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115243018A (en) * | 2022-05-27 | 2022-10-25 | 广州浩翔信息技术有限公司 | Central control device for projector curtain control and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20170604 |